add new architecture support for or1k

Information about Openrisc:
http://opencores.org/or1k/Main_Page
Integrated from:
https://github.com/openrisc/uClibc-or1k

29 files changed, 1797 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/or1k/Makefile b/libc/sysdeps/linux/or1k/Makefile
new file mode 100644
index 000000000..633c91f3e
--- /dev/null
+++ b/libc/sysdeps/linux/or1k/Makefile
@@ -0,0 +1,13 @@
+# Makefile for uClibc
+#
+# Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
+#
+# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+#
+
+top_srcdir=../../../../
+top_builddir=../../../../
+all: objs
+include $(top_builddir)Rules.mak
+include Makefile.arch
+include $(top_srcdir)Makerules
diff --git a/libc/sysdeps/linux/or1k/Makefile.arch b/libc/sysdeps/linux/or1k/Makefile.arch
new file mode 100644
index 000000000..53d4ed576
--- /dev/null
+++ b/libc/sysdeps/linux/or1k/Makefile.arch
@@ -0,0 +1,9 @@
+# Makefile for uClibc
+#
+# Copyright (C) 2010 Jonas Bonn <jonas@southpole.se>
+#
+# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+#
+
+CSRC-y := __syscall_error.c __init_brk.c brk.c sbrk.c clone.c
+SSRC-y := __longjmp.S setjmp.S
diff --git a/libc/sysdeps/linux/or1k/__init_brk.c b/libc/sysdeps/linux/or1k/__init_brk.c
new file mode 100644
index 000000000..4c6763fdd
--- /dev/null
+++ b/libc/sysdeps/linux/or1k/__init_brk.c
@@ -0,0 +1,28 @@
+/* From libc-5.3.12 */
+
+#include <errno.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+
+void * ___brk_addr = 0;
+
+int __init_brk (void);
+void *_brk(void *ptr);
+
+#define __NR__brk __NR_brk
+_syscall1(void *, _brk, void *, ptr);
+
+int
+__init_brk (void)
+{
+    if (___brk_addr == 0)
+    {
+		___brk_addr = _brk(0);
+		if (___brk_addr == 0)
+		{
+		  __set_errno(ENOMEM);
+		  return -1;
+		}
+    }
+    return 0;
+}
diff --git a/libc/sysdeps/linux/or1k/__longjmp.S b/libc/sysdeps/linux/or1k/__longjmp.S
new file mode 100644
index 000000000..1eb5bb403
--- /dev/null
+++ b/libc/sysdeps/linux/or1k/__longjmp.S
@@ -0,0 +1,81 @@
+/* longjmp for or1k
+
+   Based on:
+   longjmp for PowerPC.
+   Copyright (C) 1995, 1996, 1997, 1999, 2000 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <jmpbuf-offsets.h>
+
+#ifdef __UCLIBC_HAS_FLOATS__
+#define FP(x...) x
+#else
+#define FP(x...)
+#endif
+
+.globl     __longjmp;
+.type      __longjmp,@function;
+.align     2;
+
+__longjmp:    
+#	l.lwz   r11,(JB_SR*4)(r3)
+#	l.mtspr	r0,r11,SPR_SR
+	l.lwz   r1,((JB_GPRS+0)*4)(r3)
+	l.lwz   r2,((JB_GPRS+1)*4)(r3)
+	/* pass through "value" to r11, then restore r4, for what it's worth" */
+#if 1	
+	/* if r4 is 0, something wrong, so set it to 1 */
+	l.sfeqi r4, 0x0
+	l.bnf   1f /* r4 != 0, longjmp value sensible */
+	l.nop
+	l.ori   r4, r0, 0x1 /* make nonzero */
+1:
+#endif	
+	l.addi	r11, r4, 0
+	l.lwz   r4,((JB_GPRS+3)*4)(r3)
+	l.lwz   r5,((JB_GPRS+4)*4)(r3)
+	l.lwz   r6,((JB_GPRS+5)*4)(r3)
+	l.lwz   r7,((JB_GPRS+6)*4)(r3)
+	l.lwz   r8,((JB_GPRS+7)*4)(r3)
+	l.lwz   r9,((JB_GPRS+8)*4)(r3)
+	l.lwz   r10,((JB_GPRS+9)*4)(r3)
+	l.lwz   r12,((JB_GPRS+11)*4)(r3)
+	l.lwz   r13,((JB_GPRS+12)*4)(r3)
+	l.lwz   r14,((JB_GPRS+13)*4)(r3)
+	l.lwz   r15,((JB_GPRS+14)*4)(r3)
+	l.lwz   r16,((JB_GPRS+15)*4)(r3)
+	l.lwz   r17,((JB_GPRS+16)*4)(r3)
+	l.lwz   r18,((JB_GPRS+17)*4)(r3)
+	l.lwz   r19,((JB_GPRS+18)*4)(r3)
+	l.lwz   r20,((JB_GPRS+19)*4)(r3)
+	l.lwz   r21,((JB_GPRS+20)*4)(r3)
+	l.lwz   r22,((JB_GPRS+21)*4)(r3)
+	l.lwz   r23,((JB_GPRS+22)*4)(r3)
+	l.lwz   r24,((JB_GPRS+23)*4)(r3)
+	l.lwz   r25,((JB_GPRS+24)*4)(r3)
+	l.lwz   r26,((JB_GPRS+25)*4)(r3)
+	l.lwz   r27,((JB_GPRS+26)*4)(r3)
+	l.lwz   r28,((JB_GPRS+27)*4)(r3)
+	l.lwz   r29,((JB_GPRS+28)*4)(r3)
+	l.lwz   r30,((JB_GPRS+29)*4)(r3)
+	l.lwz   r31,((JB_GPRS+30)*4)(r3)
+	l.jr	r9
+	l.nop
+.size     __longjmp,.-__longjmp
+
+libc_hidden_def(__longjmp)
diff --git a/libc/sysdeps/linux/or1k/__syscall_error.c b/libc/sysdeps/linux/or1k/__syscall_error.c
new file mode 100644
index 000000000..ef8307893
--- /dev/null
+++ b/libc/sysdeps/linux/or1k/__syscall_error.c
@@ -0,0 +1,30 @@
+/* Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <errno.h>
+
+int __syscall_error (int err_no);
+
+/* This routine is jumped to by all the syscall handlers, to stash
+ * an error number into errno.  */
+int __syscall_error (int err_no)
+{
+	__set_errno (err_no);
+	return -1;
+}
+
diff --git a/libc/sysdeps/linux/or1k/bits/endian.h b/libc/sysdeps/linux/or1k/bits/endian.h
new file mode 100644
index 000000000..799e27a6b
--- /dev/null
+++ b/libc/sysdeps/linux/or1k/bits/endian.h
@@ -0,0 +1,25 @@
+/* Copyright (C) 1997, 1998 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+/* or1k can be little or big endian.  Hopefully gcc will know...  */
+
+#ifndef _ENDIAN_H
+# error "Never use <bits/endian.h> directly; include <endian.h> instead."
+#endif
+
+#define __BYTE_ORDER __BIG_ENDIAN
diff --git a/libc/sysdeps/linux/or1k/bits/fcntl.h b/libc/sysdeps/linux/or1k/bits/fcntl.h
new file mode 100644
index 000000000..b0813001b
--- /dev/null
+++ b/libc/sysdeps/linux/or1k/bits/fcntl.h
@@ -0,0 +1,236 @@
+/* O_*, F_*, FD_* bit values for Linux.
+   Copyright (C) 1995-1998, 2000 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef	_FCNTL_H
+# error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
+#endif
+
+
+#include <sys/types.h>
+#ifdef __USE_GNU
+# include <bits/uio.h>
+#endif
+
+/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
+   located on an ext2 file system */
+#define O_ACCMODE	  0003
+#define O_RDONLY	    00
+#define O_WRONLY	    01
+#define O_RDWR		    02
+#define O_CREAT		  0100	/* not fcntl */
+#define O_EXCL		  0200	/* not fcntl */
+#define O_NOCTTY	  0400	/* not fcntl */
+#define O_TRUNC		 01000	/* not fcntl */
+#define O_APPEND	 02000
+#define O_NONBLOCK	 04000
+#define O_NDELAY	O_NONBLOCK
+#define O_SYNC		010000
+#define O_FSYNC		O_SYNC
+#define O_ASYNC		020000
+
+#ifdef __USE_GNU
+# define O_DIRECT	 040000	/* Direct disk access.	*/
+# define O_DIRECTORY	0200000	/* Must be a directory.	 */
+# define O_NOFOLLOW	0400000	/* Do not follow links.	 */
+# define O_NOATIME     01000000 /* Do not set atime.  */
+# define O_CLOEXEC     02000000 /* Set close_on_exec.  */
+#endif
+
+#ifdef __USE_LARGEFILE64
+# define O_LARGEFILE	0100000
+#endif
+
+/* For now Linux has synchronisity options for data and read operations.
+   We define the symbols here but let them do the same as O_SYNC since
+   this is a superset.	*/
+#if defined __USE_POSIX199309 || defined __USE_UNIX98
+# define O_DSYNC	O_SYNC	/* Synchronize data.  */
+# define O_RSYNC	O_SYNC	/* Synchronize read operations.	 */
+#endif
+
+/* Values for the second argument to `fcntl'.  */
+#define F_DUPFD		0	/* Duplicate file descriptor.  */
+#define F_GETFD		1	/* Get file descriptor flags.  */
+#define F_SETFD		2	/* Set file descriptor flags.  */
+#define F_GETFL		3	/* Get file status flags.  */
+#define F_SETFL		4	/* Set file status flags.  */
+
+#ifndef __USE_FILE_OFFSET64
+# define F_GETLK	5	/* Get record locking info.  */
+# define F_SETLK	6	/* Set record locking info (non-blocking).  */
+# define F_SETLKW	7	/* Set record locking info (blocking).	*/
+#else
+# define F_GETLK	F_GETLK64  /* Get record locking info.	*/
+# define F_SETLK	F_SETLK64  /* Set record locking info (non-blocking).*/
+# define F_SETLKW	F_SETLKW64 /* Set record locking info (blocking).  */
+#endif
+
+#define F_GETLK64	12	/* Get record locking info.  */
+#define F_SETLK64	13	/* Set record locking info (non-blocking).  */
+#define F_SETLKW64	14	/* Set record locking info (blocking).	*/
+
+#if defined __USE_BSD || defined __USE_XOPEN2K
+# define F_SETOWN	8	/* Get owner of socket (receiver of SIGIO).  */
+# define F_GETOWN	9	/* Set owner of socket (receiver of SIGIO).  */
+#endif
+
+#ifdef __USE_GNU
+# define F_SETSIG	10	/* Set number of signal to be sent.  */
+# define F_GETSIG	11	/* Get number of signal to be sent.  */
+#endif
+
+#ifdef __USE_GNU
+# define F_SETLEASE	1024	/* Set a lease.	 */
+# define F_GETLEASE	1025	/* Enquire what lease is active.  */
+# define F_NOTIFY	1026	/* Request notfications on a directory.	 */
+#endif
+
+/* For F_[GET|SET]FL.  */
+#define FD_CLOEXEC	1	/* actually anything with low bit set goes */
+
+/* For posix fcntl() and `l_type' field of a `struct flock' for lockf().  */
+#define F_RDLCK		0	/* Read lock.  */
+#define F_WRLCK		1	/* Write lock.	*/
+#define F_UNLCK		2	/* Remove lock.	 */
+
+/* for old implementation of bsd flock () */
+#define F_EXLCK		4	/* or 3 */
+#define F_SHLCK		8	/* or 4 */
+
+#ifdef __USE_BSD
+/* Operations for bsd flock(), also used by the kernel implementation */
+# define LOCK_SH	1	/* shared lock */
+# define LOCK_EX	2	/* exclusive lock */
+# define LOCK_NB	4	/* or'd with one of the above to prevent
+				   blocking */
+# define LOCK_UN	8	/* remove lock */
+#endif
+
+#ifdef __USE_GNU
+# define LOCK_MAND	32	/* This is a mandatory flock:	*/
+# define LOCK_READ	64	/* ... which allows concurrent read operations.	 */
+# define LOCK_WRITE	128	/* ... which allows concurrent write operations.  */
+# define LOCK_RW	192	/* ... Which allows concurrent read & write operations.	 */
+#endif
+
+#ifdef __USE_GNU
+/* Types of directory notifications that may be requested with F_NOTIFY.  */
+# define DN_ACCESS	0x00000001	/* File accessed.  */
+# define DN_MODIFY	0x00000002	/* File modified.  */
+# define DN_CREATE	0x00000004	/* File created.  */
+# define DN_DELETE	0x00000008	/* File removed.  */
+# define DN_RENAME	0x00000010	/* File renamed.  */
+# define DN_ATTRIB	0x00000020	/* File changed attibutes.  */
+# define DN_MULTISHOT	0x80000000	/* Don't remove notifier.  */
+#endif
+
+struct flock
+  {
+    short int l_type;	/* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.	*/
+    short int l_whence;	/* Where `l_start' is relative to (like `lseek').  */
+#ifndef __USE_FILE_OFFSET64
+    __off_t l_start;	/* Offset where the lock begins.  */
+    __off_t l_len;	/* Size of the locked area; zero means until EOF.  */
+#else
+    __off64_t l_start;	/* Offset where the lock begins.  */
+    __off64_t l_len;	/* Size of the locked area; zero means until EOF.  */
+#endif
+    __pid_t l_pid;	/* Process holding the lock.  */
+  };
+
+#ifdef __USE_LARGEFILE64
+struct flock64
+  {
+    short int l_type;	/* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.	*/
+    short int l_whence;	/* Where `l_start' is relative to (like `lseek').  */
+    __off64_t l_start;	/* Offset where the lock begins.  */
+    __off64_t l_len;	/* Size of the locked area; zero means until EOF.  */
+    __pid_t l_pid;	/* Process holding the lock.  */
+  };
+#endif
+
+/* Define some more compatibility macros to be backward compatible with
+   BSD systems which did not managed to hide these kernel macros.  */
+#ifdef	__USE_BSD
+# define FAPPEND	O_APPEND
+# define FFSYNC		O_FSYNC
+# define FASYNC		O_ASYNC
+# define FNONBLOCK	O_NONBLOCK
+# define FNDELAY	O_NDELAY
+#endif /* Use BSD.  */
+
+/* Advise to `posix_fadvise'.  */
+#ifdef __USE_XOPEN2K
+# define POSIX_FADV_NORMAL	0 /* No further special treatment.  */
+# define POSIX_FADV_RANDOM	1 /* Expect random page references.  */
+# define POSIX_FADV_SEQUENTIAL	2 /* Expect sequential page references.	 */
+# define POSIX_FADV_WILLNEED	3 /* Will need these pages.  */
+# define POSIX_FADV_DONTNEED	4 /* Don't need these pages.  */
+# define POSIX_FADV_NOREUSE	5 /* Data will be accessed once.  */
+#endif
+
+#if defined __USE_GNU && defined __UCLIBC_LINUX_SPECIFIC__
+/* Flags for SYNC_FILE_RANGE.  */
+# define SYNC_FILE_RANGE_WAIT_BEFORE    1 /* Wait upon writeout of all pages
+                                             in the range before performing the
+                                             write.  */
+# define SYNC_FILE_RANGE_WRITE          2 /* Initiate writeout of all those
+                                             dirty pages in the range which are
+                                             not presently under writeback.  */
+# define SYNC_FILE_RANGE_WAIT_AFTER     4 /* Wait upon writeout of all pages in
+                                             the range after performing the
+                                             write.  */
+
+/* Flags for SPLICE and VMSPLICE.  */
+# define SPLICE_F_MOVE          1       /* Move pages instead of copying.  */
+# define SPLICE_F_NONBLOCK      2       /* Don't block on the pipe splicing
+                                           (but we may still block on the fd
+                                           we splice from/to).  */
+# define SPLICE_F_MORE          4       /* Expect more data.  */
+# define SPLICE_F_GIFT          8       /* Pages passed in are a gift.  */
+#endif
+
+__BEGIN_DECLS
+
+#if defined __USE_GNU && defined __UCLIBC_LINUX_SPECIFIC__
+
+/* Provide kernel hint to read ahead.  */
+extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
+    __THROW;
+
+
+/* Selective file content synch'ing.  */
+extern int sync_file_range (int __fd, __off64_t __from, __off64_t __to,
+                            unsigned int __flags);
+
+/* Splice address range into a pipe.  */
+extern ssize_t vmsplice (int __fdout, const struct iovec *__iov,
+                         size_t __count, unsigned int __flags);
+
+/* Splice two files together.  */
+extern ssize_t splice (int __fdin, __off64_t *__offin, int __fdout,
+                       __off64_t *__offout, size_t __len,
+                       unsigned int __flags);
+
+/* In-kernel implementation of tee for pipe buffers.  */
+extern ssize_t tee (int __fdin, int __fdout, size_t __len,
+                    unsigned int __flags);
+
+#endif
+__END_DECLS
diff --git a/libc/sysdeps/linux/or1k/bits/kernel_stat.h b/libc/sysdeps/linux/or1k/bits/kernel_stat.h
new file mode 100644
index 000000000..9c8abf658
--- /dev/null
+++ b/libc/sysdeps/linux/or1k/bits/kernel_stat.h
@@ -0,0 +1,59 @@
+/* taken from linux/include/asm-or1k/stat.h */
+
+#ifndef _BITS_STAT_STRUCT_H
+#define _BITS_STAT_STRUCT_H
+
+#ifndef _LIBC
+#error bits/kernel_stat.h is for internal uClibc use only!
+#endif
+
+struct kernel_stat {
+    unsigned long	st_dev;		/* Device.  */
+    unsigned long	st_ino;		/* File serial number.  */
+    unsigned int	st_mode;	/* File mode.  */
+    unsigned int	st_nlink;	/* Link count.  */
+    unsigned int	st_uid;		/* User ID of the file's owner.  */
+    unsigned int	st_gid;		/* Group ID of the file's group. */
+    unsigned long	st_rdev;	/* Device number, if device.  */
+    unsigned long	__pad1;
+    long		st_size;	/* Size of file, in bytes.  */
+    int		        st_blksize;	/* Optimal block size for I/O.  */
+    int		        __pad2;
+    long		st_blocks;	/* Number 512-byte blocks allocated. */
+    struct timespec     st_atim;
+    struct timespec     st_mtim;
+    struct timespec     st_ctim;
+    /*
+    unsigned long  	st_atime;
+    unsigned long  	__unused1;
+    unsigned long  	st_mtime;
+    unsigned long  	__unused2;
+    unsigned long  	st_ctime;
+    unsigned long  	__unused3;
+    */
+    unsigned int  	__unused4;
+    unsigned int  	__unused5;
+};
+
+/* This matches struct stat64 in glibc2.1.
+ */
+struct kernel_stat64 {
+    unsigned long long  st_dev;      /* Device.  */
+    unsigned long long  st_ino;	     /* File serial number.  */
+    unsigned int        st_mode;     /* File mode.  */
+    unsigned int        st_nlink;    /* Link count.  */
+    unsigned int        st_uid;	     /* User ID of the file's owner.  */
+    unsigned int        st_gid;	     /* Group ID of the file's group. */
+    unsigned long long  st_rdev;     /* Device number, if device.  */
+    unsigned long long  __pad1;
+    long long           st_size;     /* Size of file, in bytes.  */
+    int                 st_blksize;  /* Optimal block size for I/O.  */
+    int                 __pad2;
+    long long           st_blocks;   /* Number 512-byte blocks allocated. */
+    struct timespec     st_atim;
+    struct timespec     st_mtim;
+    struct timespec     st_ctim;
+    unsigned int        __unused4;
+    unsigned int        __unused5;
+};
+#endif
diff --git a/libc/sysdeps/linux/or1k/bits/kernel_types.h b/libc/sysdeps/linux/or1k/bits/kernel_types.h
new file mode 100644
index 000000000..4c5fe3ea6
--- /dev/null
+++ b/libc/sysdeps/linux/or1k/bits/kernel_types.h
@@ -0,0 +1 @@
+#include <asm/posix_types.h>
diff --git a/libc/sysdeps/linux/or1k/bits/machine-gmon.h b/libc/sysdeps/linux/or1k/bits/machine-gmon.h
new file mode 100644
index 000000000..15a1773d6
--- /dev/null
+++ b/libc/sysdeps/linux/or1k/bits/machine-gmon.h
@@ -0,0 +1,31 @@
+/* or1k-specific implementation of profiling support.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+/* We need a special version of the `mcount' function because it has
+   to preserve more registers than your usual function.  */
+
+void __mcount_internal (unsigned long frompc, unsigned long selfpc);
+
+#define _MCOUNT_DECL(frompc, selfpc) \
+void __mcount_internal (unsigned long frompc, unsigned long selfpc)
+
+
+/* Define MCOUNT as empty since we have the implementation in another
+   file.  */
+#define MCOUNT
diff --git a/libc/sysdeps/linux/or1k/bits/setjmp.h b/libc/sysdeps/linux/or1k/bits/setjmp.h
new file mode 100644
index 000000000..ad93b1991
--- /dev/null
+++ b/libc/sysdeps/linux/or1k/bits/setjmp.h
@@ -0,0 +1,32 @@
+/* Copyright (C) 1997, 1998, 2000 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+/* Define the machine-dependent type `jmp_buf'.  or1k version.  */
+
+#ifndef _BITS_SETJMP_H
+#define _BITS_SETJMP_H  1
+
+#ifndef _SETJMP_H
+# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
+#endif
+
+#ifndef	_ASM
+typedef long int __jmp_buf[32];
+#endif
+
+#endif
diff --git a/libc/sysdeps/linux/or1k/bits/sigcontextinfo.h b/libc/sysdeps/linux/or1k/bits/sigcontextinfo.h
new file mode 100644
index 000000000..369738a99
--- /dev/null
+++ b/libc/sysdeps/linux/or1k/bits/sigcontextinfo.h
@@ -0,0 +1,24 @@
+/* Copyright (C) 1998, 1999, 2001 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <signal.h>
+
+#define SIGCONTEXT struct sigcontext *
+#define SIGCONTEXT_EXTRA_ARGS
+#define CALL_SIGHANDLER(handler, signo, ctx) \
+  (handler)((signo), SIGCONTEXT_EXTRA_ARGS (ctx))
diff --git a/libc/sysdeps/linux/or1k/bits/stackinfo.h b/libc/sysdeps/linux/or1k/bits/stackinfo.h
new file mode 100644
index 000000000..12d46a026
--- /dev/null
+++ b/libc/sysdeps/linux/or1k/bits/stackinfo.h
@@ -0,0 +1,28 @@
+/* Copyright (C) 1999 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+/* This file contains a bit of information about the stack allocation
+   of the processor.  */
+
+#ifndef _STACKINFO_H
+#define _STACKINFO_H	1
+
+/* On or1k the stack grows down.  */
+#define _STACK_GROWS_DOWN	1
+
+#endif	/* stackinfo.h */
diff --git a/libc/sysdeps/linux/or1k/bits/syscalls.h b/libc/sysdeps/linux/or1k/bits/syscalls.h
new file mode 100644
index 000000000..6a08d3cd1
--- /dev/null
+++ b/libc/sysdeps/linux/or1k/bits/syscalls.h
@@ -0,0 +1,101 @@
+/*
+ * Based on arm/bits/syscalls.h
+ */
+
+#ifndef _BITS_SYSCALLS_H
+#define _BITS_SYSCALLS_H
+#ifndef _SYSCALL_H
+# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead."
+#endif
+
+/*
+   Some of the sneaky macros in the code were taken from
+   glibc-2.3.2/sysdeps/unix/sysv/linux/arm/sysdep.h
+*/
+
+#ifdef __ASSEMBLER__
+
+/* TODO: recheck this */
+
+/* Call a given syscall, with arguments loaded.  Unlike the DO_CALL
+   macro in glibc, this macro does not load syscall arguments.  */
+#undef DO_CALL
+#define DO_CALL(syscall_name)			\
+    l.lwz r11, =SYS_ify (syscall_name);		\
+    l.sys 1					\
+    l.nop
+
+#else
+
+#include <errno.h>
+
+#define INTERNAL_SYSCALL_NCS(name, err, nr, args...)			\
+  ({ unsigned long __sys_result;					\
+     {									\
+       register long __sc_ret __asm__ ("r11") = name;			\
+       LOAD_ARGS_##nr (args)						\
+       __asm__ __volatile__ ("l.sys     1"				\
+                             : "=r" (__sc_ret) ASM_ARGS_OUT_##nr	\
+                             : "0" (__sc_ret) ASM_ARGS_IN_##nr		\
+			     : ASM_CLOBBERS_##nr			\
+			       "r12", "r13", "r15", "r17", "r19",	\
+			       "r21", "r23", "r25", "r27", "r29",	\
+			       "r31");					\
+       __asm__ __volatile__ ("l.nop");					\
+       __sys_result = __sc_ret;						\
+     }									\
+     (long) __sys_result; })
+
+/*			     : "0", "1", "2", "3", "4", "5", "6",	\ */
+/*			     : ASM_CLOBBERS_##nr,			\ */
+ 
+#define LOAD_ARGS_0()
+
+#define ASM_ARGS_OUT_0
+#define ASM_ARGS_IN_0
+#define ASM_CLOBBERS_0	"r3", ASM_CLOBBERS_1
+
+#define LOAD_ARGS_1(a)				\
+  LOAD_ARGS_0 ()				\
+  register long __a __asm__ ("r3") = (long)(a);
+#define ASM_ARGS_OUT_1	ASM_ARGS_OUT_0, "=r" (__a)
+#define ASM_ARGS_IN_1	ASM_ARGS_IN_0, "1" (__a)
+#define ASM_CLOBBERS_1	"r4", ASM_CLOBBERS_2
+
+#define LOAD_ARGS_2(a, b)			\
+  LOAD_ARGS_1 (a)				\
+  register long __b __asm__ ("r4") = (long)(b);
+#define ASM_ARGS_OUT_2	ASM_ARGS_OUT_1, "=r" (__b)
+#define ASM_ARGS_IN_2	ASM_ARGS_IN_1, "2" (__b)
+#define ASM_CLOBBERS_2	"r5", ASM_CLOBBERS_3
+
+#define LOAD_ARGS_3(a, b, c)			\
+  LOAD_ARGS_2 (a, b)				\
+  register long __c __asm__ ("r5") = (long)(c);
+#define ASM_ARGS_OUT_3	ASM_ARGS_OUT_2, "=r" (__c)
+#define ASM_ARGS_IN_3	ASM_ARGS_IN_2, "3" (__c)
+#define ASM_CLOBBERS_3	"r6", ASM_CLOBBERS_4
+
+#define LOAD_ARGS_4(a, b, c, d)			\
+  LOAD_ARGS_3 (a, b, c)				\
+  register long __d __asm__ ("r6") = (long)(d);
+#define ASM_ARGS_OUT_4	ASM_ARGS_OUT_3, "=r" (__d)
+#define ASM_ARGS_IN_4	ASM_ARGS_IN_3, "4" (__d)
+#define ASM_CLOBBERS_4	"r7", ASM_CLOBBERS_5
+
+#define LOAD_ARGS_5(a, b, c, d, e)		\
+  LOAD_ARGS_4 (a, b, c, d)			\
+  register long __e __asm__ ("r7") = (long)(e);
+#define ASM_ARGS_OUT_5	ASM_ARGS_OUT_4, "=r" (__e)
+#define ASM_ARGS_IN_5	ASM_A